首页|近50年来中国天山冰川面积变化对气候的响应

近50年来中国天山冰川面积变化对气候的响应

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基于1960年以来中国天山各流域冰川面积变化的统计分析,系统地研究了中国天山冰川面积变化对气候的响应情况.结果表明,近50年来中国天山冰川的而积缩小了11.5%,对研究时段统一化后发现面积年均退缩率为0.31%a-1.各流域冰川面积退缩速度存在一定差异,但冰川加速消融趋势明显.天山地区14个气象站的气温与降水量倾向率平均值分别为0.34℃·(10 a)-1与11 mm·(10 a)-1,气温在干季增幅大而在湿季增幅略小,降水量在干季增长缓慢而在湿季增长显著,这样的气候变化趋势有助于天山冰川的退缩.
Response of Glacier Area Variation to Climate Change in Chinese Tianshan Mountains in the Past 50 Years
Based on the statistics of glacier area variation measured in Chinese Tianshan Mountains since 1960, the response of glacier area variation to climate change is discussed systematically. Results show that the total area of the glaciers has reduced by 11.5％ in the past 50 years, which is a weighted percentage according to the glacier areas of 10 drainage areas divided by Glacier Inventory of China. The annual percentage of area changes (APAC) of glaciers in the Tianshan Mountains is 0.31％, after the standardization of the study period.According to the 14 meteorological stations in the Tianshan Mountains, both the temperature and precipitation display a marked increasing tendency from 1960 to 2009 with a rate of 0.34 ℃·(10 a)-1 and 11 mm· (10 a)-1, respectively. The temperature in dry seasons (from November to March) increases rapidly with a rate of 0.46 ℃·(10 a)-1, but the precipitation grows slowly at 2.3 mm· (10 a)-1; while the temperature in wet seasons (from April to October) grows with a rate of 0.25 ℃·(10 a)-1, but the precipitation increases at 8.7 mm·(10 a)-1.

Tianshan Mountainsglacier variationglacier areaclimate change

王圣杰、张明军、李忠勤、王飞腾、李慧林、李亚举、黄小燕

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西北师范大学地理与环境科学学院,兰州,730070

中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室/天山冰川观测试验站,兰州,730000

天山 冰川变化 冰川面积 气候变化

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金教育部新世纪优秀人才支持计划陇原青年创新人才扶持计划项目国家重点基础研究发展规划(973计划)国家重点基础研究发展规划(973计划)中国科学院知识创新工程重要方向性项目冰冻圈科学国家重点实验室自主研究项目西北师范大学知识与科技创新工程创新团队项目

40701035406310014057103340701034J0630966NCET-10-00192010CB9510032007CB411501KZCX2-YW-127NWNU-KJCXGC-03-66

2011

地理学报
中国地理学会 中国科学院地理科学与资源研究所

地理学报

CSTPCDCSCDCHSSCD北大核心
影响因子：3.3
ISSN：0375-5444
年,卷(期)：2011.66(1)
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